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186results about How to "Prevent dry burning" patented technology

Humidity detection device for electric pressure cooker and use method

The invention discloses a humidity detection device for an electric pressure cooker and a use method. The device comprises a cooker body and a top cover which covers the cooker body, wherein a base isarranged on the bottom of the cooker body, a heating plate is arranged on the bottom of the inside of the cooker body, a temperature sensor is arranged on the top of the heating plate, a heat conduction layer is arranged inside the cooker body, a clamping bulge is arranged at the top of the heat conduction layer, a liner is arranged inside the heat conduction layer, a sealing ring is arranged between the cooker body and the top cover, handles are arranged on the outer sides of the top of the cooker body, a controller is arranged on one side of the outer side of the cooker body, a water collecting box is arranged at the other side of the outer side of the cooker body, a hand shank is arranged at the top of the top cover, and a humidity digital meter is arranged on one side of the hand shank. The humidity detection device and the use method have the beneficial effects that 1, a humidity detector is used for detecting the humidity in the electric pressure cooker, so that the dry-burningcondition of the electric pressure cooker can be prevented; and 2, a humidity sensor made of the material such as ceramic is used, so that the sensing is sensitive, and the device can continuously work under the high-temperature and high-humidity environments.
Owner:郑光敏

Temperature control dry heating prevention electronic cigarette and temperature control method thereof

The invention relates to a temperature control dry heating prevention electronic cigarette and a temperature control method thereof. The temperature control dry heating prevention electronic cigarette comprises a housing, a liquid storage device, an atomization assembly with an atomization chamber and a heating element, a power supply and a circuit control board with a smoking switch, wherein the liquid storage device, the atomization assembly, the power supply and the circuit control board are mounted in the housing in a sleeve mode. The circuit control board provided with a power management module and a temperature sensing unit, wherein the temperature sensing unit comprises a temperature sensor capable of sensing temperature signals of the atomization chamber and converting the temperature signals into temperature electrical signals to be transmitted the power management module, and the power management module determines and deals with the temperature electrical signals to generate control electrical signals for controlling the heating element to be connected to or disconnected to the power supply. The temperature control dry heating prevention electronic cigarette has the advantages of being capable of preventing the dry heating of the heating element of the atomization assembly for preventing the harmful gas and burning smell from being sucked into a human body and the harm to the health of the human body by using the temperature sensor to detect and control the temperature of the atomization chamber.
Owner:HUIZHOU HAPPY VAPING TECH LTD

Battery device, electronic cigarette and control method thereof

The invention provides a control method of an electronic cigarette. The electronic cigarette comprises an atomization device and a battery device, wherein the atomization device comprises a liquid guide element and a heating element; the battery device comprises a wetting detection module, a control module, a storage module, a switch module and a power source module. The control method comprises the following steps: the wetting detection module detects a relevant physical quantity X and feeds back the relevant physical quantity X to the control module; the control module calculates according to corresponding relation data of relevant physical quantity X and wetting degree Q prestored in the storage module, so as to obtain the wetting degree Q; the control module judges the size relation of the wetting degree Q and a first threshold Q1; if Q is greater than or equal to Q1, the electronic cigarette operates continuously, and if Q is less than Q1, the control module sends a standby command to the switch module; the switch module disconnects the electronic connection between the power source module and the heating element. The invention further provides the electronic cigarette for applying the control method.
Owner:JOYETECH EURO HLDG

Control method for water boiling of electric kettle

InactiveCN101667043ASolve the trouble of measuring the boiling temperature of water in various places and setting it in the circuitImprove accuracyWater-boiling vesselsTemperature control using electric meansElectricityEngineering
The invention discloses a method for water boiling of an electric kettle, and particularly relates to a control method suitable for water boiling in areas of different altitudes. The method comprisesthe following steps: a control circuit is used for controlling the power supply of a power supply circuit for an electric heating unit which emits heat to a kettle body; a temperature probe of the control circuit is used for detecting the current temperature of water in the kettle body; and in the event that the current temperature measured by the temperature probe does not lower during a certainperiod and maintains constant for a plurality of measuring times, or the current temperature measured by the temperature probe does not change for a plurality of measuring times in succession, the control circuit cuts off the power supply of the power supply circuit for the electric heating unit and withdraws. The method solves the trouble that the temperature of water boiling in different areas needs to be measured one by one and requires setting of the circuit; and simultaneously, the method also prevents the interference of the external world and can eliminate 'false boiling' phenomenon caused by constant temperature during a certain period during heating process, thereby being capable of improving the correctness of boiling control.
Owner:余俊忠

Liquid heating device, electric vacuum flask and dry burning preventing control method thereof

The invention relates to a dry burning preventing control method of a liquid heating device. The method comprises the following steps: detecting temperature of liquid in a liner in real time by virtue of a temperature sensor; then, transmitting the detected temperature of the liquid in the liner to a control unit; calculating a change rate of the temperature of the liquid in the liner by virtue of the control unit in accordance with the temperature, which is detected by the temperature sensor, of the liquid in the liner; acquiring a working condition of a heating body by virtue of the control unit, and calling a corresponding preset temperature change rate under a corresponding state in accordance with the acquired working condition; and controlling the heating body to stop working when the change rate, which is calculated by the control unit, of the temperature of the liquid in the liner is greater than or equal to the preset temperature change rate. With the application of the dry burning preventing control method provided by the invention, a dry burning phenomenon of the liquid heating device under various states can be effectively prevented. The invention also provides the liquid heating device and an electric vacuum flask.
Owner:GUANGDONG MIDEA CONSUMER ELECTRICS MFG CO LTD +1

Vapor chamber with supporting pillar and groove composite structure

The invention discloses a vapor chamber with a supporting pillar and a groove composite structure. The vapor chamber comprises an upper covering plate and a lower covering plate, wherein a condensation end liquid suction core is disposed in a cavity of the upper covering plate; an evaporation end liquid suction core is disposed in a cavity of the lower covering plate; an annular cavity is disposedin the evaporation end liquid suction core; a supporting pillar is disposed at the center of the annular cavity; a groove structure is disposed in peripheries of the annular cavity; both the supporting pillar and the groove structure get contacted with the condensation end liquid suction core; and the upper covering plate and the lower covering plate are sealed, and a liquid filling hole is formed between the upper covering plate and the lower covering plate. Evaporation of a liquid working medium and collection of a condensation liquid are promoted by the cavity of the evaporation end liquidsuction core, and a liquid backflow channel is formed by the supporting pillar to reduce a pressure drop at the center; evaporation of the liquid working medium and backflow of the working medium toa center evaporation area are promoted by the cavity of the groove, so heat transfer performance is improved; a main backflow channel of the condensation liquid is formed by an entity part of the groove, so condensation and backflow are accelerated; and strength of the vapor chamber is ensured by the supporting pillar and the groove structure, so collapse and thermal deformation of the vapor chamber are avoided effectively.
Owner:SOUTH CHINA UNIV OF TECH

Humidifying equipment and water replenishing system

The invention discloses a water replenishing system. The water replenishing system comprises a main water tank, a water supply tank and a water replenishing tank, and the main water tank is positioned in a humidifying equipment body. The water supply tank and the main water tank are communicated through a water supply pipeline, and the water replenishing tank and the water supply tank are communicated through a water replenishing valve. In an operation process, when quantity of water in the main water tank in the equipment is decreased, a communication system formed by the water supply tank, the main water tank and the water supply pipeline enables water in the water supply tank to enter the main water tank through the water supply pipeline to guarantee normality in operation of the humidifying equipment, so that dry burning of the humidifying equipment is avoided; when water in the water supply tank is in small quantity, the water replenishing valve is open to allow water in the water replenishing tank to enter the water supply tank, so that timely and efficient water replenishing for the humidifying equipment can be further guaranteed. The invention further discloses the humidifying equipment with the water replenishing system.
Owner:GREE ELECTRIC APPLIANCES INC OF ZHUHAI

Atomization core, atomizer and electronic atomization device

The invention relates to an atomization core, an atomizer and an electronic atomization device. The atomization core comprises a porous ceramic matrix and a heating element, wherein the porous ceramicmatrix comprises a liquid guide layer and a heat conduction layer; the heat conductivity of the heat conduction layer is greater than the heat conductivity of the liquid guide layer; the permeabilityof the liquid guide layer is higher than the permeability of the heat conduction layer; and the heating element is attached to the heat conduction layer. Due to the fact that the heat conduction layer is arranged on the liquid guide layer and the heat conductivity of the heat conduction layer is much higher than the heat conductivity of the liquid guide layer, when the heating element works, heatgenerated by the heating element is rapidly conducted to each area of the heat conduction layer through the heat conduction layer, so that the dry burning phenomenon caused by the local high temperature of the porous ceramic matrix is effectively prevented. Meanwhile, the permeability of the heat conduction layer is lower than the permeability of the liquid guide layer, so that the heat conduction layer has a relatively good liquid locking function for liquid and the liquid is prevented from leaking from the surface of the heat conduction layer.
Owner:SHENZHEN SMOORE TECH LTD

Humidifier

The invention relates to the field of household appliances, in particular to a simple humidifier. The humidifier consists of a pure water box, a steam generator, a high-temperature and high-humidity test box, a water storage box and a water supplementing electromagnetic valve, wherein the pure water box is connected with the water storage box through the water supplementing electromagnetic valve, and the water storage box is sequentially connected with the steam generator and the high-temperature and high-humidity test box. The humidifier has the advantages that a sub water box is specially designed, a water pump pumps circulation water from the water storage box and injects the water into the sub water box, and the sub water box is communicated with a heating tank through a bottom water pipe, so that when the water level in the sub water box meets the requirements, the water level in the heating tank also meets the requirements, in addition, the water consumption in the steam generator can be supplemented in time, and the occurrence of dry burning phenomenon is prevented.
Owner:SHAANXI YUHANG ELECTRONICS

Ultrasonic salt bath combined cleaning machine for mechanical parts for test

The invention discloses an ultrasonic salt bath combined cleaning machine for mechanical parts for a test. The ultrasonic salt bath combined cleaning machine comprises an upper portion and a lower portion. The upper portion comprises a sealing cover. The lower portion comprises an inner cleaning tank and an outer cleaning tank, wherein a cooling water tank is further arranged between the inner cleaning tank and the outer cleaning tank. A water inlet channel which is communicated with the inner cleaning tank, the cooling water tank and the outside world in sequence is arranged at the bottom of the outer cleaning tank, a water outlet channel which is communicated with the cooling water tank and the outside world is arranged on the side of the outer cleaning tank, and a plurality of ultrasonic transducers are symmetrically arranged on the side of the outer cleaning tank. An inclined salt discharging outlet is formed in the bottom of the inner cleaning tank; a plurality of semi-heating type electric heating tubes are symmetrically installed at the bottom of the inner cleaning tank, and the working temperature of the ultrasonic salt bath combined cleaning machine can be increased to 300-350DEG C through the semi-heating type electric heating tubes; the semi-heating type electric heating tubes generate heat only through the bottoms of the semi-heating type electric heating tubes, and the heat is used for reducing corrosion caused by high-temperature molten salt on the semi-heating type electric heating tubes.
Owner:SHANDONG UNIV

Anti-dry-burning dish washing machine

The invention provides an anti-dry-burning dish washing machine. The dish washing machine comprises a heating device, a temperature controller, a main control chip and a peripheral hardware circuit; the peripheral circuit comprises a detection circuit for detecting the on / off state of the temperature controller and a protection circuit for disconnecting a main circuit connected with the heating device; the main control chip is connected with the detection circuit and the protection circuit so that the main circuit can be disconnected through the protection circuit after the detection circuit detects that the temperature controller is switched off. By detecting the on / off state of the temperature controller, a rapider response can be made to dry burning; once the temperature controller is switched off, the heating device is powered off, and the main control chip controls the protection circuit to disconnect the main circuit; when the temperature controller recovers, as the main circuitis still disconnected by the protection circuit, the heating device cannot be powered on, and dry burning is effectively prevented. Besides, the detection accuracy is high, and the anti-dry-burning reliability is also more satisfactory.
Owner:JOYOUNG CO LTD

Electronic cigarette atomizer temperature compensation circuit and control method thereof

The invention relates to the technical field of electronic cigarettes, in particular to an electronic cigarette atomizer temperature compensation circuit and a control method thereof. The circuit is arranged on a chip and connected with an atomizer and a power supply, and atomization silks are contained in the atomizer; the impedance of the atomization silks is varied with the temperature; and a circuit structure further comprises a calibration circuit module, an ADC collecting module and a PID control module. According to the electronic cigarette atomizer temperature compensation circuit, the critical atomization voltage and the process deviation voltage are removed simultaneously, thus the electronic cigarette atomization temperature is controlled more accurately, meanwhile the electronic cigarette atomization temperature can be accurately controlled according to atomization points of tobacco tar of different types, thus an electronic cigarette is sufficiently atomized, dry burning and insufficient atomization are avoided, and the taste of the electronic cigarette is improved.
Owner:SHENZHEN EVERWIN PRECISION TECH

Concrete steam curing box

The invention discloses a concrete steam curing box comprising a test piece box and a steam delivery device. The steam delivery device comprises a heating water tank and a water supply device. The heating water tank is connected with the test piece box through a first pipeline. The water supply device comprises a water supply unit and a water supply box. The water supply unit is connected with the water supply box through a second pipeline. A water level switch is disposed inside the water supply box. The water supply box is connected with the heating water tank through a U-shaped pipe. Two ends of the U-shaped pipe are connected with the bottom of the water supply box and the bottom of the heating water tank. The water supply box in the steam delivery device is connected with the heating water tank through the U-shaped pipe, the U-shaped pipe prevents boiling water in the heating water tank from reflowing to the water supply box through a liquid seal, the water level switch is protected from heat damage, dry heating of the heating water box can also be prevented, and damage of the heating water tank is avoided.
Owner:SUZHOU DONGHUA TESTING INSTR

Instant solar heating system

The invention discloses an instant solar heating system which is characterized in that: a hot water storage tank is provided with a water inlet main pipe connected with an external pipe network; a medium pipeline is arranged between the hot water storage tank and a solar panel heating assembly; a medium pipeline is arranged between the hot water storage tank and a preheating assembly; heat transfer media are arranged in the medium pipelines and circulates between the hot water storage tank and the solar panel heating assembly as well as between the hot water storage tank and the preheating assembly respectively; the hot water storage tank is connected with a water inlet pipeline of the gas instant heating assembly through a water outlet pipe; a water outlet pipeline of the gas instant heating assembly is connected with a geothermal system and a heating system; and the geothermal system and the heating system are connected with the hot water storage tank through a water return pipe. The instant solar heating system disclosed by the invention comprehensively utilizes various energy sources to heat water, realizes fast heating and large heated water quantity, saves energy, is available all day long, safe and environment-friendly, effectively meets the using needs of people, and improves the quality of life.
Owner:FUZHOU AQUAPOWER ELECTRIC WATER HEATER
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